Final App Version

PLEASE ADD THIS TO PROJECT DESCRIPTION.txt

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+Background image taken from http://sambees.deviantart.com/

Sat.java

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+import javax.vecmath.Vector3d;
+
+/**
+ * 
+ * @authors AbdurRehman & Ted & Mat
+ *	Sat object which describe it's orbit...
+ */
+
+public class Sat extends GravityObject {
+
+	private final double  normliseFactorS = 11.0E06;
+	private int ID; 
+	public Sat(){}
+	public Sat(double a, double b, int id)
+	{
+		super();
+		this.ID = id;
+		this.semiMajorAxis = a;
+		this.semiMinorAxis = b;
+		this.theta = Math.random() * ( 6.28 - 0);
+		this.setPeriodT(this.semiMajorAxis, this.semiMinorAxis);
+		this.phaseDif = Math.random() * (this.periodT - 0 ) ;
+	}
+
+	/**
+	 * Get the Positions!! z is always 1
+	 * @param time double
+	 * @return Vector3 positions
+	 */
+	public Vector3d getPositions(double t)
+	{ 
+
+		double xDash = this.getX(t + this.phaseDif) * Math.cos(theta) + this.getY(t  + this.phaseDif) * Math.sin(theta);
+		double yDash = -this.getX(t  + this.phaseDif) * Math.sin(theta) + this.getY(t  + this.phaseDif) * Math.cos(theta);
+		Vector3d temp = new Vector3d(xDash, yDash, 1);
+		return temp;
+	}
+
+	private void setPeriodT(double a, double b)
+	{
+		this.periodT = 2*Math.PI * Math.sqrt((Math.pow(this.semiMajorAxis, 3)/MU));
+		System.out.println(" \nPeriod: " + this.periodT+ "\n");
+	}
+
+	/*
+	 * returns C positions 
+	 * @param double t // for current time you want to find the position
+	 */
+	public double getY(double t)
+	{
+		this.currentTime = t;
+		this.yPosition = 
+				(this.semiMinorAxis * Math.sin((this.currentTime/this.periodT)*2*Math.PI)) / (2 * this.normliseFactorS) ;
+
+		return this.yPosition;
+	}
+
+	/*
+	 * returns C positions 
+	 * @param double t // for current time you want to find the position
+	 */
+	public double getX(double t)
+	{
+		this.currentTime = t;
+		//Calculating X axis
+				this.xPosition = 
+						( Math.sqrt( Math.pow(this.semiMajorAxis, 2) -  Math.pow(this.semiMinorAxis, 2)) 
+						+ this.semiMajorAxis * Math.cos((this.currentTime/this.periodT)*2*Math.PI) ) / (2 * this.normliseFactorS);
+		return this.xPosition;
+	}
+
+
+}